I managed to design a right click context menu addition to IE, where I can highlight a phone number (i.e. text) on a webpage and choose "PHONE" which copies the phone number to the clipboard and then executes phone dialer and pastes the phone number into the dialer's window, then hits dial button, which makes the call.

It required creating 2 "hidden" html documents, one whose title appeared in the right click menu, which copied the highlighted phone number to the clipboard and then "opened" the second html document

You can execute "wscript.exe" from a macro and pass command line arguments to it. I did not go that far yet. In this little demo I just allow the user to highlight the phone number and right click to open Dialer.exe. You still have to paste the number and click "dial".

In your profile there is a folder named "macros". Copy the following code (different font) and put it into Notepad and give the filename that is in bold type. Be careful to select all files instead of text when saving from Notepad so the file extension will be kmm instead of txt.

You can find the path to your profile folder by using EDIT - CONFIGURATION - PROFILE DIRECTORY. After you put the macro named "DialOut.kmm" into your profile, restart KM, highlight a phone number, and right click.